Or you can use social media and have fun with your characters at the same time, like Spencer Quinn has done with his new book released last week called Dog on It: A Chet and Bernie Mystery.
Quinn started a blog and Twitter feed in the voice of his main character. But, get this, the main character is a dog. Meet Chet, the wise and lovable canine narrator of Dog on It, who works alongside Bernie, a down-on-his-luck private investigator. Chet might have flunked out of police school ("I'd been the best leaper in K-9 class, which had led to all the trouble in a way I couldn't remember exactly, although blood was involved"), but he's a detective through and through.
I just love Chet's blog and Twitter feed. Quinn speaks dog language amazingly well. Great stuff.
Example tweet: "Love surprises myself. Finding a forgotten chew strip, for example. What beats that? Not much."
From Chet's blog: CONGRATULATIONS STUMP!
"Way to go, Stump, winner of the Westminster Show last night. The ears on that old guy - maybe the best I've ever seen. And the whole show - is there anything better on TV? Not that I know of. I didn't catch quite all of it, on account of when the dogs run around the circle I get a bit excited. Did you see how many treats they got? Watch how the handlers are always reaching into their pockets - that's for treats! Can't tell you what kind because there’s no smell on TV, one of the big drawbacks. Are they working on fixing that? Also, TV has sound but it’s not quite right. Bernie never seems bothered by that. Maybe humans don’t notice. Humans are full of surprises, but I've liked just about every one I’ve ever met, even some of the perps we've taken down."